Model comparison
Gemini 2.5 Pro vs Gemini 4 Argon
Gemini 4 Argon is the stronger model overall, scoring 56.5 to 45.0 on the Noometry Index.
Last verified . 17 shared benchmarks.
GoogleSummary
- They share 17 benchmarks with published results for both. Gemini 2.5 Pro scores higher in 2 categories and Gemini 4 Argon in 8 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in math, where Gemini 4 Argon leads 73.9 to 32.5.
- The biggest single-benchmark swing is CritPt: 2% for Gemini 2.5 Pro and 27.1% for Gemini 4 Argon.
Side by side
| Gemini 2.5 Pro | Gemini 4 Argon | |
|---|---|---|
| Provider | ||
| Noometry Index | 45.0 | 56.5 |
| Released | 2025-03-25 | 2026-09-30 |
| Weights | Proprietary | Proprietary |
| Context window | 1.05M | — |
| Max output | 66K | — |
| Input $ / M tokens | $1.25 | — |
| Output $ / M tokens | $10 | — |
| Results tracked | 78 | 21 |
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Category by category
Coding Gemini 4 Argon leads
Gemini 2.5 Pro: 42.4 (#101), Gemini 4 Argon: 62.0 (#9)
| Benchmark | Gemini 2.5 Pro | Gemini 4 Argon |
|---|---|---|
| LMArena WebDev | 1227 | 1678 |
| SciCode | 42.8% | 61.8% |
| LMArena Coding | 1452 | 1550 |
| SWE-bench Verified | 57.6% | — |
| SWE-bench Verified (bash only) | 53.6% | — |
| Aider Polyglot | 83.1% | — |
| FrontierSWE | — | 55% |
| GSO | 3.9% | — |
| WeirdML | 54% | — |
| LiveBench Coding | 85.9% | — |
| CadEval | 64% | — |
| ALE-Bench | 785.52 | — |
| AlgoTune | 1.51 | — |
Agentic & Tool Use Gemini 4 Argon leads
Gemini 2.5 Pro: 29.2 (#88), Gemini 4 Argon: 49.2 (#8)
| Benchmark | Gemini 2.5 Pro | Gemini 4 Argon |
|---|---|---|
| Vending-Bench 2 | 573.64 | 13,718 |
| Terminal-Bench | 32.6% | — |
| APEX-Agents | — | 82.2% |
| GDPval | 23.3% | — |
| Remote Labor Index | 0.8% | — |
| TheAgentCompany | 30.3% | — |
| τ²-bench Banking | 13.7% | — |
| DeepResearch Bench | 42.8% | — |
| BALROG | 43.3% | — |
| LMArena Search | 1142 | — |
| METR Time Horizons | 55.4% | — |
Reasoning Gemini 4 Argon leads
Gemini 2.5 Pro: 28.8 (#99), Gemini 4 Argon: 44.2 (#47)
| Benchmark | Gemini 2.5 Pro | Gemini 4 Argon |
|---|---|---|
| CritPt | 2% | 27.1% |
| LMArena Hard Prompts | 1455 | 1548 |
| ARC-AGI-2 | 4.9% | — |
| SimpleBench | 62.4% | — |
| Kagi LLM Benchmark | 70.3% | — |
| ARC-AGI-1 | 41% | — |
| Chess Puzzles | 20% | — |
| EnigmaEval | 5.6% | — |
| LiveBench Reasoning | 89.8% | — |
| DTBench | 82.4% | — |
| LiveBench Data Analysis | 79.9% | — |
| LMCA | 34.8% | — |
| Epoch Capabilities Index | 145.32 | — |
| ForecastBench | 61.3 | — |
| LiveBench | 82.3% | — |
Math Gemini 4 Argon leads
Gemini 2.5 Pro: 32.5 (#213), Gemini 4 Argon: 73.9 (#17)
| Benchmark | Gemini 2.5 Pro | Gemini 4 Argon |
|---|---|---|
| LMArena Math | 1450 | 1536 |
| FrontierMath (Tiers 1-3) | 24.6% | — |
| FrontierMath Tier 4 | 0% | — |
| OTIS Mock AIME 2024-2025 | 84.7% | — |
| ProofBench | — | 99% |
| Omni-MATH | 41.6% | — |
| LiveBench Math | 90.2% | — |
| MATH Level 5 | 95.9% | — |
| FrontierMath (Feb 2025 set) | 14.1% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Gemini 2.5 Pro leads
Gemini 2.5 Pro: 56.0 (#46), Gemini 4 Argon: 43.9 (#89)
| Benchmark | Gemini 2.5 Pro | Gemini 4 Argon |
|---|---|---|
| LMArena Expert | 1452 | 1553 |
| GPQA Diamond | 85.3% | — |
| Humanity's Last Exam | 21.6% | — |
| MMLU-Pro | 86.3% | — |
| Confabulations | 10.6% | — |
| Vectara Hallucination Rate | 7% | — |
| GPQA (HELM) | 74.9% | — |
Multimodal Gemini 4 Argon leads
Gemini 2.5 Pro: 45.2 (#18), Gemini 4 Argon: 46.5 (#14)
| Benchmark | Gemini 2.5 Pro | Gemini 4 Argon |
|---|---|---|
| LMArena Vision | 1263 | — |
| GeoBench | 86% | — |
| VPCT | 48% | — |
| Blueprint-Bench 2 | — | 54.4% |
| LMArena Document | 1421 | — |
| SpatialViz-Bench | 44.7% | — |
Multilingual Gemini 4 Argon leads
Gemini 2.5 Pro: 55.3 (#31), Gemini 4 Argon: 60.3 (#1)
| Benchmark | Gemini 2.5 Pro | Gemini 4 Argon |
|---|---|---|
| LMArena Non-English | 1451 | 1523 |
| LMArena Chinese | 1507 | 1610 |
| LMArena Russian | 1461 | 1537 |
| LMArena Spanish | 1473 | 1497 |
| LMArena French | 1472 | — |
| LMArena German | 1487 | — |
| LMArena Japanese | 1461 | — |
| LMArena Korean | 1434 | — |
Instruction Following Gemini 4 Argon leads
Gemini 2.5 Pro: 75.0 (#75), Gemini 4 Argon: 80.1 (#2)
| Benchmark | Gemini 2.5 Pro | Gemini 4 Argon |
|---|---|---|
| LMArena Instruction Following | 1437 | 1538 |
| LiveBench Instruction Following | 80.6% | — |
| IFEval | 84% | — |
Long Context Gemini 2.5 Pro leads
Gemini 2.5 Pro: 59.8 (#5), Gemini 4 Argon: 47.6 (#15)
| Benchmark | Gemini 2.5 Pro | Gemini 4 Argon |
|---|---|---|
| LMArena Longer Query | 1449 | 1549 |
| Fiction.LiveBench | 91.7% | — |
Writing & Preference Gemini 4 Argon leads
Gemini 2.5 Pro: 63.7 (#62), Gemini 4 Argon: 71.4 (#19)
| Benchmark | Gemini 2.5 Pro | Gemini 4 Argon |
|---|---|---|
| LMArena Text | 1458 | 1534 |
| LMArena Creative Writing | 1454 | 1531 |
| LMArena Multi-Turn | 1453 | 1557 |
| Short-Story Creative Writing | 83.8% | — |
| EQ-Bench Creative Writing | 1421 | — |
| WildBench | 85.7% | — |
| LiveBench Language | 67.8% | — |
Frequently asked questions
Is Gemini 2.5 Pro better than Gemini 4 Argon?
Gemini 4 Argon is the stronger model overall, scoring 56.5 to 45.0 on the Noometry Index.
Is Gemini 2.5 Pro or Gemini 4 Argon better for coding?
Gemini 4 Argon scores higher on coding benchmarks: 62.0 versus 42.4 in the Noometry coding category.
How many benchmarks do Gemini 2.5 Pro and Gemini 4 Argon share?
17 benchmarks have published results for both models. Gemini 2.5 Pro has 78 scored results on Noometry and Gemini 4 Argon has 21.